Question

Select which element(s) contain atoms at ground state with 4 electron layers
HELP PLEASE!

Answer 1

Answer: Cobalt,Titanium,Potassium

Explanation:

If an element has 4 electron layers can be well understood from their electronic configuration :-

Cobalt -> [Ar] 3
`d^(7)` 4
`s^(2)`

Titanium -> [Ar] 3
`d^(2)` 4
`s^(2)`

Carbon -> [He] 2
`s^(2)` 2
`p^(2)`

Potassium -> [Ar] 4
`s^(1)`